21203600

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:169

約数の個数: 120

約数和(自身を含む): 57198720

約数和(自身を除く): 35995120

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 61, 79, 80, 88, 100, 110, 122, 158, 176, 200, 220, 244, 275, 305, 316, 395, 400, 440, 488, 550, 610, 632, 671, 790, 869, 880, 976, 1100, 1220, 1264, 1342, 1525, 1580, 1738, 1975, 2200, 2440, 2684, 3050, 3160, 3355, 3476, 3950, 4345, 4400, 4819, 4880, 5368, 6100, 6320, 6710, 6952, 7900, 8690, 9638, 10736, 12200, 13420, 13904, 15800, 16775, 17380, 19276, 21725, 24095, 24400, 26840, 31600, 33550, 34760, 38552, 43450, 48190, 53009, 53680, 67100, 69520, 77104, 86900, 96380, 106018, 120475, 134200, 173800, 192760, 212036, 240950, 265045, 268400, 347600, 385520, 424072, 481900, 530090, 848144, 963800, 1060180, 1325225, 1927600, 2120360, 2650450, 4240720, 5300900, 10601800, 21203600]

約数ペア:

[(1, 21203600), (2, 10601800), (4, 5300900), (5, 4240720), (8, 2650450), (10, 2120360), (11, 1927600), (16, 1325225), (20, 1060180), (22, 963800), (25, 848144), (40, 530090), (44, 481900), (50, 424072), (55, 385520), (61, 347600), (79, 268400), (80, 265045), (88, 240950), (100, 212036), (110, 192760), (122, 173800), (158, 134200), (176, 120475), (200, 106018), (220, 96380), (244, 86900), (275, 77104), (305, 69520), (316, 67100), (395, 53680), (400, 53009), (440, 48190), (488, 43450), (550, 38552), (610, 34760), (632, 33550), (671, 31600), (790, 26840), (869, 24400), (880, 24095), (976, 21725), (1100, 19276), (1220, 17380), (1264, 16775), (1342, 15800), (1525, 13904), (1580, 13420), (1738, 12200), (1975, 10736), (2200, 9638), (2440, 8690), (2684, 7900), (3050, 6952), (3160, 6710), (3355, 6320), (3476, 6100), (3950, 5368), (4345, 4880), (4400, 4819)]